Unverified50% confidenceFactExact time
Prompt caching means the identical prefix shared by multiple requests is fully billed and processed only on the first request, and subsequent requests hitting the cache can lower the input token price and reduce latency; but caching cannot shorten the total context length, and long histories still occupy the context window and raise latency.
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50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
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Related Claims
UnverifiedSome vendors have introduced context caching (Prompt Caching) features, charging lower fees for repeatedly occurring long prefixes.77% similarUnverifiedCached input refers to pre-storing the same context on the server side so that subsequent requests can reuse the cache without repeated computation, and is billed at a lower price.77% similarUnverifiedPrompt caching allows vendors to cache the same repeated prefix in an Agent loop, with subsequent calls billed at the cache read price, in this example $0.20 versus $4 for input, 20 times cheaper.74% similarUnverifiedToken caching (Prompt Caching) is a cost-optimization mechanism in large model APIs; when the same prefix appears repeatedly across multiple requests, the computation result can be cached and charged at a lower rate.71% similarUnverifiedPrompt Caching在提示词前缀完全相同且超过约1024 token阈值时命中，缓存token通常按原价的25%甚至更低计费70% similar
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